21611051

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 6589909

約数列:

[1, 7, 11, 59, 67, 71, 77, 413, 469, 497, 649, 737, 781, 3953, 4189, 4543, 4757, 5159, 5467, 27671, 29323, 33299, 43483, 46079, 52327, 280663, 304381, 322553, 366289, 1964641, 3087293, 21611051]

約数ペア:

[(1, 21611051), (7, 3087293), (11, 1964641), (59, 366289), (67, 322553), (71, 304381), (77, 280663), (413, 52327), (469, 46079), (497, 43483), (649, 33299), (737, 29323), (781, 27671), (3953, 5467), (4189, 5159), (4543, 4757)]